Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Ages for Prehnite at Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA

The cyan highlights indicate which age entries were selected as the "best" for assigning the mineral an age of 170Ma - 170Ma at this locality

Age range from children

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
podchrome-00483	170	170			Cr	18134	Ribbon Mine (Washington Chrome Mine), Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157

Locality age

Excel ID	Max Age (Ma)	Min Age (Ma)	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	Dated Locality ID	Dated Locality	Ref	Ref ID
podchrome-00483	170	170			Cr	18134	Ribbon Mine (Washington Chrome Mine), Green Creek, Twin Sisters Mountain, Sisters District, Whatcom Co., Washington, USA	Moiser et al. (2012)	USGSSIR2012_5157